Tree-shake side-effect-free string methods on template literals

[lukastaegert]

This PR contains:

• bugfix
• feature
• refactor
• documentation
• other

Are tests included?

• yes (bugfixes and features will not be merged without tests)
• no

Breaking Changes?

• yes (breaking changes will not be merged unless absolutely necessary)
• no

List any relevant issue numbers:
Resolves #4488

Description

This applies the same optimization to template literals as to strings e.g. calling .trim() is no longer considered a side effect.

[github-actions]

Thank you for your contribution! ❤️

You can try out this pull request locally by installing Rollup via

npm install rollup/rollup#template-literal-members

or load it into the REPL:
https://rollupjs.org/repl/?pr=4511

[codecov]

Codecov Report

Merging #4511 (38aa416) into master (46a193b) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #4511   +/-   ##
=======================================
  Coverage   98.78%   98.78%           
=======================================
  Files         208      208           
  Lines        7425     7431    +6     
  Branches     2118     2120    +2     
=======================================
+ Hits         7335     7341    +6     
  Misses         34       34           
  Partials       56       56           

Impacted Files	Coverage Δ
src/ast/nodes/Literal.ts	100.00% <ø> (ø)
src/ast/nodes/TemplateLiteral.ts	100.00% <100.00%> (ø)
src/ast/values.ts	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 46a193b...38aa416. Read the comment docs.